US79898A - Impsovemeit in - Google Patents

Description

E. as. CLAPP.

Spectacles. y No. 79,898. Patented July I4, 1868.

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4 www; i 6% MW Mg. am@ 4w @atten gisten inganni @fitta ERASTUS S. CLAIROF MONTAGUE, MASSACHUSETTS, ASSIGNOR TO `IIIMSELF AND ISAAC CHENERY, OE SAME PLAGE.

Leners Parent No. 79,898, ma July 14, 186s.

IMPROVEMENT IN SPECTACLES.

l To ALnWHoM 1T MAY eoNonnN:

Be it known that I, ERASTUS S. CLAPP, of Montague, i-n the county of Franklin, and State of Massachusetts, have invented a ne and useful Improvement inV Spectacles; and I do hereby declare that the following is a full,

clear, and exact description thereof, which will venable -those skilled in the art to make and usc the same, reference beinghad to the accompanying drawings,` forming part of this specification.

This invention has for its object to provide spectaclesfor those who use them, which shall not require to be removed fromtthe nose when the glasses are not needed, whereby much trouble and inconvenience are avoided. And the invention consists in attaching, by,hinges, to a spectacle-frame (Without glasses) another` frame, containing glasses, and so arranged that they may be raised from the eyes without removing the Erst-mentioned frame from the nose, or disturbing it in any manner, as will hereinafter be more fully described.

Figure 1 represents the adjustable frame, with glasses therein closed down, as when in use. Figure 2 is a verticalsection of iig. I, through-the line :v x. Similar letters of reference indicate corresponding parts. A represents a common spectacle-frame without glasses, but with bows attached in the ordinary manner for securing the rame to the head. f i

B represents the boyvs. C `ie the adjustable frame, with glasses to suit the eye.A The rings C', whih hold the glasses, are attached rigidly to a ro`d-,D,4at e e. This rod passes through eyes el, which are soldered to the top of the glass-rings of the frame A, as se en in the drawing, at d; i Y j 1 Y This rod D turns in the ey,es d, forming a pivot-hinge at each ring.

f is a bntto'n on the end'of the rod'D, by which the yrod is turned and the glasses raised, as seen in g. 2.

For thepurposeoi` holding the adjustableglasses and frame C inthe position seen in fig. 2, thereis a small spring, g-l attached to the centre of the projecting nose-bow h, as seen in the drawing.

Transversely abross the rod D there is fixed a small flat piece of metal, "i, against which the spring bears i with a constant pressure, so that, tvhen'V the glasses are down before the eyes, (or m use,) the spring, bearing against the piece ion the rod, holds the glass-frame steady and in place.

When the glasses areraised from the eye, as seen in iig. 2, the bearing ot: -the spring against thepiece z', (as seen in the gure,) holds the. glass-frame in that position'.

It will thus be seen that, when the glasses are not needed, it is not necessary to raise the spectacles to the forehead, (as is usual,) but only to give t'he buttonfa slight turn with the thumb and finger, and the proper and desired adjustment is made.

Having thus described vmy invention, I claim as new, and desire to secure by Letters Patent- In combination with a spectacle-frame,` the rod D, with glass-rings and glasses attached thereto, and made adjustable, substantially as and for the purposes hereinA shownand described. v

ERSTUS S. CLAPP.

Witnesses;

H. D. STEWART,V CHARLES Pri-ATT.

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